Fan tower climbing device safety control system and method thereof

Abstract

The invention relates to the technical field of fan tower tube climbing devices, in particular to a fan tower tube climbing device safety control system and method.The fan tower tube climbing device safety control system comprises a fan tower tube body, a safety mechanism and an anti-falling mechanism, the inner wall of the fan tower tube body is fixedly connected with a crawling ladder, and the lower middle portion of the fan tower tube body is fixedly connected with a platform; a motor is arranged at one end of the lifting table, steel wire ropes are symmetrically wound on the surface of the wire coil, safety grooves are formed in the inner walls of the two sides of the crawling ladder, and safety blocks are slidably connected into the safety grooves. The device can automatically carry out primary locking work after moving and can also complete secondary locking work, the use safety of a user can be greatly improved through two times of locking, and when the device only can fall accidentally during use, the device can timely, effectively and automatically carry out locking work, so that the device is prevented from falling, and the safety of the user is improved. The use safety of the device is further improved, and the use safety of a user is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine tower climbing devices, and in particular to a wind turbine tower climbing device safety control system and method thereof. Background Art

[0002] The wind turbine tower is an important part of the wind turbine generator set. It is a tall tubular structure. Its main function is to support the nacelle and impeller of the wind turbine so that it can obtain strong and stable wind at high altitudes. In order to facilitate the maintenance staff to go up and down, a non-climbing device is usually installed inside it. The non-climbing device is a low-speed light lifting machinery that uses a motor to drive the lifting platform to run up and down along the track installed on the building or equipment ladder to transport personnel and materials at high altitudes. The non-climbing device is currently mainly used in the field of wind power. It is installed on the ladder inside the wind turbine tower for use by wind turbine maintenance personnel. It can greatly save the physical consumption of personnel climbing the wind turbine tower and transporting maintenance instruments and equipment, and improve the maintenance efficiency of the wind turbine. At present, some existing wind turbine tower climbing device safety control systems are in use, and the safety is low. In emergency situations, they cannot be automatically locked in time and effectively to ensure the safety of maintenance personnel, which may cause injuries to maintenance personnel. Summary of the invention

[0003] The object of the present invention is to provide a wind turbine tower climbing device safety control system and method thereof, so as to solve the problem raised in the above background technology that some of the currently existing wind turbine tower climbing device safety control systems have low safety during use, and cannot be automatically locked in time and effectively in emergency situations to ensure the safety of maintenance personnel, thereby causing injuries to maintenance personnel. The present device can automatically perform a preliminary locking operation after moving, and can also complete a secondary locking operation after moving. The two locking operations can greatly improve the safety of user use. When the present device is in use and can only fall accidentally, the present device can automatically lock in time and effectively to avoid the device from falling, further improving the safety of the use of the present device, and greatly improving the safety of user use.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wind turbine tower climbing device safety control system and method thereof, the device comprises a wind turbine tower body, a safety mechanism and an anti-fall mechanism, the inner wall of the wind turbine tower body is fixedly connected with a ladder, the middle and lower part of the wind turbine tower body is fixedly connected with a platform, and the inner wall of the platform is fixedly connected to the ladder, the middle part of the ladder is slidably connected with a climbing block, the bottom end of one side of the climbing block is fixedly connected with a footboard, the top of the climbing block is fixedly connected with a handrail, and the middle part of the handrail is slidably connected to the middle part of the ladder, the top of the ladder is fixedly connected with a lifting platform, and both ends of the lifting platform are fixedly connected to the inner wall of the wind turbine tower body, the middle of the lifting platform is fixedly connected to the inner wall of the wind turbine tower body, and the middle of the lifting platform is fixedly connected to the inner wall of the wind turbine tower body. A rotating warehouse is provided at the bottom, and the bottom end of the rotating warehouse passes through the lifting platform, the interior of the rotating warehouse is connected with a wire drum through a bearing, one end of the wire drum is fixedly connected with a main shaft, and one end of the main shaft is connected to the inner wall of the rotating warehouse through a bearing, the middle part of the main shaft is fixedly connected with a worm gear, one end of the lifting platform is provided with a motor, the output end of the motor is fixedly connected with a worm, and the worm gear is meshed with the worm gear, the surface of the wire drum is symmetrically wound with steel wire ropes, and the bottom ends of the steel wire ropes are fixedly connected to the top of the climbing block, guide grooves are symmetrically provided in the middle part of the ladder, safety grooves are provided on the inner walls on both sides of the ladder, safety blocks are slidably connected to the inside of the safety grooves, and one end of the safety blocks is fixedly connected to the climbing block.

[0005] Preferably, the inner wall of the transfer bin is symmetrically provided with wheel grooves, and the interior of the wheel grooves are connected with three sets of rollers through bearings. The surface of the wire rope fits with the surface of the roller, which facilitates the movement of the wire rope, reduces the wear of the wire rope, and increases the service life of the wire rope.

[0006] Preferably, the control end of the motor is electrically connected to an external power supply through an external switch, the size of the safety groove is larger than the size of the safety block, and the gap between the safety groove and the safety block is one centimeter, which facilitates subsequent automatic locking.

[0007] Preferably, the safety mechanism includes a locking block, a locking groove, a first receiving groove, a locking rod, a reset groove, a slide plate, a spring, a first control groove, an inclined surface block and a first electric push rod. The bottom end of the climbing block is fixedly connected with two sets of locking blocks. The inner walls of the guide groove and one end of the safety groove are both provided with locking grooves. The middle part of the locking block is provided with a first receiving groove. Both ends of the first receiving groove are slidably connected with locking rods. The inner walls of the first receiving groove are symmetrically provided with reset grooves. The interior of the reset groove is slidably connected with slide plates, and the middle parts of the slide plates are respectively connected with the locking rods. Fixed connection, both ends of the slide plate are fixedly connected with springs, and one end of the spring is respectively fixedly connected to the inner wall of the reset groove, the bottom end of the climbing block is provided with a first control groove, and the bottom end of the first control groove passes through the locking block, the inside of the first control groove is slidably connected with an inclined surface block, and the middle part of the inclined surface block is respectively fitted with one end of the locking rod, the inner wall of the top end of the first control groove is provided with a first electric push rod, and the output end of the first electric push rod is respectively fixedly connected to the top end of the inclined surface block, thereby improving the safety of user use.

[0008] Preferably, one end of the locking rods are respectively located inside the lock slots, and the lengths of the locking rods inside the lock slots are the same, which facilitates the locking rods to be inserted into the lock slots at the same time. The control ends of the first electric push rods are electrically connected to the external power supply through an external switch, and the bottom ends of the inclined surfaces of the inclined blocks are symmetrical inclined surfaces, and the ends of the locking rods that are close to each other are inclined surfaces that match the bottom ends of the inclined surfaces of the inclined blocks, which facilitates the inclined surfaces of the inclined blocks to push the locking rods to move.

[0009] Preferably, the anti-fall mechanism includes a speed detection wheel, a second receiving groove, a push plate, a locking plate, a slide groove, a slider, an inclined surface groove, a second control groove, a total push rod, a connecting rod and a second electric push rod. Three sets of speed detection wheels are symmetrically arranged in the middle of the climbing block, and the surface of the speed detection wheel fits the inner wall of the guide groove. The middle and lower parts of the safety block are symmetrically provided with a second receiving groove, and both ends of the second receiving groove are slidably connected with a push plate, and the ends of the push plates away from each other are provided with a locking plate, and the locking plates are respectively slidably connected to the second receiving groove, and the sides of the push plates away from each other are provided with a slide groove, and the middle and lower parts of the slide groove are slidably connected with a slider, and one end of the slider is respectively fixedly connected to the middle and lower parts of the lock plate. The middle parts of both ends of the block are symmetrically provided with inclined retaining grooves, and the bottom ends of the inclined retaining grooves are respectively connected to the second receiving grooves, the middle and lower parts of the safety block are provided with second control grooves, and one ends of the second control grooves are respectively located inside the climbing block, one ends of the second control grooves are respectively connected to the second receiving grooves, the insides of the second control grooves are slidably connected with a total push rod, one end of the total push rod is evenly connected to a connecting rod through a rotating shaft, and one end of the connecting rod is respectively connected to the push plate through a rotating shaft, the inner wall of one end of the second control groove is evenly provided with three groups of second electric push rods, and the output ends of the second electric push rods are respectively fixedly connected to the total push rod, thereby improving the safety of the device and avoiding failure to automatically lock when falling.

[0010] Preferably, the upper and middle parts of the locking plate close to the push plate are all inclined surfaces, and the inner wall of the inclined surface against the groove side is an inclined surface adapted to the locking plate, so that it can be automatically locked when falling.

[0011] Preferably, the control ends of the second electric push rods are electrically connected to an external power source through speed detection wheels, so as to facilitate automatic operation of the device.

[0012] The operation method of the device: Step 1: Unlocking. The user stands on the footboard and holds the top of the handrail with both hands. At this time, the user first controls the first electric push rod to work. The output end of the first electric push rod is shortened, and the inclined surface block moves upward inside the first control groove through the first electric push rod. At this time, the bottom end of the inclined surface block no longer conflicts with one end of the locking rod. Under the action of the spring's own rebound force, the slide plate moves inside the reset groove. At the same time, the slide plate drives the locking rod to move toward the middle of the locking block, so that one end of the locking rod is no longer inside the locking groove. At this time, the unlocking work is completed; Step 2: Move, control the motor to work, the output end of the motor drives the worm wheel and the main shaft to rotate through the worm, the main shaft drives the wire drum to rotate, the wire drum is used to retract and release the wire rope, and the wire rope can pull the climbing block, footboard, handrail and user to move up and down; Step 3: Lock again. When the user moves to a suitable position, the worm gear and the worm can initially complete self-locking. Then the user controls the first electric push rod to work, so that the inclined surface of the bottom end of the inclined surface block contacts the inclined surface of the locking rod through the first electric push rod, so that one end of the locking rod is inserted into the interior of the lock slot, thereby completing the locking function. Step 4: Automatic locking upon falling. When the user falls while using the device, the speed detection wheel can detect that the climbing block and the user are falling quickly again. At this time, the output end of the second electric push rod pushes the total push rod forward, and the total push rod makes the push plate and the lock plate slide to the ends away from each other through the connecting rod until one side of the lock plate is tightly fitted with the inner wall of the safety groove. At this time, the lock plate moves upward under the action of friction, and the inclined surface of the lock plate and the inclined surface of the inclined surface groove conflict with each other, thereby further moving the lock plate outward, so that the lock plate is in the gap between the inclined surface groove and the safety groove, and the friction between the surface of the safety block and the inner wall of the safety groove is increased by the lock plate, thereby locking the safety block and the climbing block, so that the safety block, the climbing block, the foot plate and the user do not fall. Step 5: Reset. When the user is safe, the control motor works, thereby pulling the climbing block upward through the wire rope, and the climbing block drives the safety block to move upward inside the safety groove. The upward moving safety block can make the lock plate move downward. When the bottom end of the lock plate contacts the inner wall of the bottom end of the second receiving groove, the lock plate no longer moves. The main push rod is reset through the second electric push rod, and the push plate and the lock plate can be reset through the connecting rod, so as to facilitate the next safety protection work.

[0013] Compared with the prior art, the present invention has the following beneficial effects: When the user uses the device to climb, the user stands on the footboard and holds the top of the handrail with both hands. At this time, the user first controls the first electric push rod to work, and the output end of the first electric push rod is shortened, and the inclined surface block moves upward inside the first control groove through the first electric push rod. At this time, the bottom end of the inclined surface block no longer conflicts with one end of the locking rod. At this time, under the action of the spring's own rebound force, the slide plate moves inside the reset groove, and at the same time, the slide plate drives the locking rod to move toward the middle of the locking block, so that one end of the locking rod is no longer inside the locking groove. At this time, the unlocking work is completed, and then the motor can be controlled to work. The output end of the motor drives the worm gear and the main shaft to rotate through the worm, and the main shaft drives the wire drum to rotate. The wire drum is used to retract and release the wire rope, and the climbing block can be pulled by the wire rope. , footboard, handrail and the user move up and down, and at the same time, the climbing block drives the speed detection wheel to rotate inside the guide groove, and the climbing block drives the safety block to slide inside the safety groove. When the user moves to a suitable position, the worm gear and the worm can initially complete self-locking, and then the user controls the first electric push rod to work, and the first electric push rod makes the inclined surface of the bottom end of the inclined surface block contact with the inclined surface of the locking rod, so that one end of the locking rod is inserted into the interior of the lock groove, thereby completing the locking function, further improving the safety of user use. When the user falls while using the device, the speed detection wheel can detect that the climbing block and the user fall quickly again. At this time, the output end of the second electric push rod extends, and the output end of the second electric push rod pushes the main push rod to move forward, and the main push rod The locking plate is then moved back and forth in a direction that the user can move the lock plate forward, thereby locking the locking plate and the user's movement. The safety of the user is thus ensured. When the user is safe, the control motor works, thereby pulling the climbing block upward through the steel wire rope, and the climbing block drives the safety block to move upward inside the safety groove, and the upward moving safety block can make the locking plate move downward. When the bottom end of the locking plate contacts the inner wall of the bottom end of the second receiving groove, the locking plate no longer moves, and the total push rod is reset through the second electric push rod, and the push plate and the lock plate can be reset through the connecting rod, so as to facilitate the next safety protection work. The device can automatically perform the initial locking work after moving, and can also complete the secondary locking work after moving. The double locking can greatly improve the safety of user use. When the device is in use and only an accidental fall occurs, the device can automatically and effectively perform the locking work.This prevents the device from falling, further improves the safety of the device, and greatly improves the safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a cross-sectional perspective schematic diagram of the present invention; Figure 3 It is a cross-sectional stereoscopic schematic diagram of the lifting platform and the transfer bin in the present invention; Figure 4 It is a cross-sectional stereoscopic schematic diagram of the guide groove and the safety groove in the present invention; Figure 5 It is a cross-sectional perspective schematic diagram of the locking block and the first receiving groove in the present invention; Figure 6 It is a cross-sectional stereoscopic schematic diagram of the first receiving groove and the first control groove in the present invention; Figure 7 It is a cross-sectional perspective schematic diagram of the safety block and the second receiving groove in the present invention; Figure 8 It is a cross-sectional perspective schematic diagram of the second receiving groove and the second control groove in the present invention; Fig. 9 It is a cross-sectional stereoscopic schematic diagram of the safety block and the second control groove in the present invention.

[0015] In the figure: 1. Wind turbine tower body; 2. Ladder; 3. Platform; 4. Climbing block; 5. Footboard; 6. Handrail; 7. Lifting platform; 8. Turntable; 9. Wire drum; 10. Main shaft; 11. Worm gear; 12. Motor; 13. Worm; 14. Wheel groove; 15. Roller; 16. Wire rope; 17. Guide groove; 18. Speed ​​detection wheel; 19. Safety groove; 20. Safety block; 21. Lock block; 22 , locking groove; 23, first receiving groove; 24, locking rod; 25, reset groove; 26, slide plate; 27, spring; 28, first control groove; 29, inclined surface block; 30, first electric push rod; 31, second receiving groove; 32, push plate; 33, locking plate; 34, slide groove; 35, slider; 36, inclined surface block; 37, second control groove; 38, main push rod; 39, connecting rod; 40, second electric push rod. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 9, an embodiment provided by the present invention: A wind turbine tower climbing device safety control system and method thereof, the device comprises a wind turbine tower body 1, a safety mechanism and an anti-fall mechanism, a ladder 2 is fixedly connected to the inner wall of the wind turbine tower body 1, a platform 3 is fixedly connected to the middle and lower part of the wind turbine tower body 1, and the inner wall of the platform 3 is fixedly connected to the ladder 2, a climbing block 4 is slidably connected to the middle of the ladder 2, a footboard 5 is fixedly connected to the bottom end of one side of the climbing block 4, a handrail 6 is fixedly connected to the top of the climbing block 4, and the middle part of the handrail 6 is slidably connected to the middle part of the ladder 2, a lifting platform 7 is fixedly connected to the top of the ladder 2, and both ends of the lifting platform 7 are fixedly connected to the inner wall of the wind turbine tower body 1, a transfer bin 8 is provided in the middle of the lifting platform 7, and the bottom end of the transfer bin 8 passes through the lifting platform 7 , a wire drum 9 is connected to the interior of the rotating warehouse 8 through a bearing, one end of the wire drum 9 is fixedly connected to a main shaft 10, and one end of the main shaft 10 is connected to the inner wall of the rotating warehouse 8 through a bearing, a worm gear 11 is fixedly connected to the middle of the main shaft 10, a motor 12 is provided at one end of the lifting platform 7, a worm 13 is fixedly connected to the output end of the motor 12, and the worm 13 is meshed with the worm gear 11, a steel wire rope 16 is symmetrically wound around the surface of the wire drum 9, and the bottom ends of the steel wire ropes 16 are fixedly connected to the top of the climbing block 4, a guide groove 17 is symmetrically provided in the middle of the ladder 2, and safety grooves 19 are provided on the inner walls on both sides of the ladder 2, and safety blocks 20 are slidably connected to the interior of the safety grooves 19, and one end of the safety blocks 20 is fixedly connected to the climbing block 4; See also Figure 5 and Figure 6In this embodiment, the safety mechanism includes a locking block 21, a locking groove 22, a first receiving groove 23, a locking rod 24, a reset groove 25, a slide plate 26, a spring 27, a first control groove 28, an inclined block 29 and a first electric push rod 30. The bottom end of the climbing block 4 is fixedly connected with two sets of locking blocks 21. The inner walls of the guide groove 17 and one end of the safety groove 19 are both provided with locking grooves 22. The middle part of the locking block 21 is provided with a first receiving groove 23. Both ends of the first receiving groove 23 are slidably connected with locking rods 24. The inner wall of the first receiving groove 23 is symmetrically provided with reset grooves 25. The interior of the reset groove 25 is slidably connected with a slide plate 26, and the slide plate The middle parts of the sliding plates 26 are respectively fixedly connected to the locking rods 24, the two ends of the sliding plates 26 are fixedly connected with springs 27, and one end of the springs 27 is respectively fixedly connected to the inner wall of the reset groove 25, the bottom end of the climbing block 4 is provided with a first control groove 28, and the bottom end of the first control groove 28 passes through the locking block 21, the inside of the first control groove 28 is slidably connected with an inclined surface block 29, and the middle parts of the inclined surface block 29 are respectively fitted with one end of the locking rod 24, the inner wall of the top end of the first control groove 28 is provided with a first electric push rod 30, and the output ends of the first electric push rod 30 are respectively fixedly connected to the top end of the inclined surface block 29, The user stands on the footboard 5 and holds the top of the handrail 6 with both hands. At this time, the user first controls the first electric push rod 30 to work, and the output end of the first electric push rod 30 shortens, and the output end of the first electric push rod 30 drives the inclined surface block 29 to move, and the inclined surface block 29 moves upward inside the first control groove 28 through the first electric push rod 30. At this time, the bottom end of the inclined surface block 29 no longer contacts one end of the locking rod 24. At this time, the slide plate 26 moves inside the reset groove 25 under the action of the spring 27's own rebound force, and at the same time, the slide plate 26 drives the locking rod 24 to move toward the middle of the locking block 21, so that one end of the locking rod 24 The first end of the lock is no longer in the lock slot 22, and the unlocking work is completed at this time. When the user moves to a suitable position, the user controls the first electric push rod 30 to work, and the inclined surface of the first electric push rod 30 moves down, and the inclined surface of the bottom end of the inclined surface block 29 contacts the inclined surface of the lock rod 24, so that the lock rods 24 are separated from each other. At the same time, the lock rod 24 drives the slide plate 26 to slide in the reset groove 25, and the slide plate 26 compresses the spring 27. When one end of the lock rod 24 is inserted into the lock slot 22, the locking function is completed, further improving the safety of the user's use. See also Figure 4 , Figure 7 , Figure 8 and Fig. 9In this embodiment, the anti-fall mechanism includes a speed detection wheel 18, a second receiving groove 31, a push plate 32, a locking plate 33, a slide groove 34, a slider 35, an inclined surface groove 36, a second control groove 37, a total push rod 38, a connecting rod 39 and a second electric push rod 40. Three groups of speed detection wheels 18 are symmetrically arranged in the middle of the climbing block 4, and the surface of the speed detection wheel 18 is in contact with the inner wall of the guide groove 17. The middle and lower parts of the safety block 20 are symmetrically provided with second receiving grooves 31, and both ends of the second receiving grooves 31 are slidably connected with push plates 32. The ends of the push plates 32 that are away from each other are provided with locking plates 33, and the locking plates 33 are respectively slidably connected with the second receiving grooves 31. The sides of the push plates 32 that are away from each other are provided with slide grooves 34, and the middle and lower parts of the slide grooves 34 are slidably connected with sliders 35. , and one end of the slider 35 is fixedly connected to the middle and lower part of the lock plate 33, and the middle parts of both ends of the safety block 20 are symmetrically provided with inclined surface grooves 36, and the bottom ends of the inclined surface grooves 36 are respectively connected to the second receiving grooves 31, and the middle and lower parts of the safety block 20 are provided with second control grooves 37, and one end of the second control grooves 37 are respectively located inside the climbing block 4, and one end of the second control grooves 37 are respectively connected to the second receiving grooves 31, and the interior of the second control grooves 37 is slidably connected with a total push rod 38, and one end of the total push rod 38 is evenly connected to a connecting rod 39 through a rotating shaft, and one end of the connecting rod 39 is respectively connected to the push plate 32 through a rotating shaft, and the inner wall of one end of the second control groove 37 is evenly provided with three groups of second electric push rods 40, and the second electric push rods 40 The output ends are fixedly connected to the main push rod 38 respectively. When the user falls while using the device, the climbing block 4 and the user can be detected by the speed detection wheel 18 to quickly fall. At this time, the output end of the second electric push rod 40 is extended, and the output end of the second electric push rod 40 pushes the main push rod 38 to move forward. The main push rod 38 makes the push plate 32 slide inside the second receiving groove 31 through the connecting rod 39. At this time, the push plate 32 slides to the end away from each other, and the push plate 32 drives the lock plate 33 to move through the slider 35 until one side of the lock plate 33 is tightly fitted with the inner wall of the safety groove 19. At this time, the lock plate 33 moves upward under the action of friction, and the lock plate 33 drives the slider 35 to slide inside the slide groove 34. At this time, the inclined surface of the lock plate 33 and the inclined surface of the lock plate 33 are The inclined surfaces of the surface-abutting groove 36 contact each other, thereby further moving the locking plate 33 outward, so that the locking plate 33 is in the gap between the inclined-abutting groove 36 and the safety groove 19, thereby reducing the gap between the safety groove 19 and the safety block 20 through the locking plate 33, and increasing the friction between the surface of the safety block 20 and the inner wall of the safety groove 19 through the locking plate 33, thereby locking the safety block 20 and the climbing block 4, so that the safety block 20 does not slide downward, thereby preventing the climbing block 4, the foot plate 5 and the user from falling, thereby ensuring the safety of the user. When the user is safe, the control motor 12 works, thereby pulling the climbing block 4 upward through the steel wire rope 16, and the climbing block 4 drives the safety block 20 to move upward inside the safety groove 19, and the upward moving safety block 20 can cause the locking plate 33 to move downward.When the bottom end of the lock plate 33 contacts the inner wall of the bottom end of the second receiving groove 31, the lock plate 33 stops moving, and the main push rod 38 is reset through the second electric push rod 40, and the push plate 32 and the lock plate 33 are reset through the connecting rod 39, so as to facilitate the next safety protection work, improve the safety of the device, and avoid failure to automatically lock when falling; It should be noted that the inner wall of the rotating bin 8 is symmetrically provided with wheel grooves 14, and the interior of the wheel grooves 14 is connected with three sets of rollers 15 through bearings. The surface of the wire rope 16 fits the surface of the roller 15, which facilitates the movement of the wire rope 16, reduces the wear of the wire rope 16, and increases the service life of the wire rope 16. The control end of the motor 12 is electrically connected to the external power supply through an external switch. The size of the safety groove 19 is larger than the size of the safety block 20. The gap between the safety groove 19 and the safety block 20 is one centimeter, which is convenient for subsequent automatic locking. One end of the locking rod 24 is respectively located inside the locking groove 22, and the length of the locking rod 24 inside the locking groove 22 is the same. The lock rod 24 is conveniently inserted into the lock slot 22 at the same time. The control ends of the first electric push rod 30 are electrically connected to the external power supply through an external switch. The bottom ends of the inclined surface blocks 29 are symmetrical inclined surfaces. The ends of the lock rods 24 that are close to each other are inclined surfaces that match the bottom ends of the inclined surface blocks 29. It is convenient for the inclined surface blocks 29 to push the lock rod 24 to move. The middle and upper parts of the lock plate 33 close to the push plate 32 are inclined surfaces. The inner wall of the inclined surface groove 36 is an inclined surface that matches the lock plate 33. It is convenient to automatically lock when falling. The control ends of the second electric push rod 40 are electrically connected to the external power supply through the speed detection wheel 18, respectively, so that the device can work automatically. The device operates as follows: Step 1: Unlocking. The user stands on the footboard 5 and holds the top of the handrail 6 with both hands. At this time, the user first controls the first electric push rod 30 to work. The output end of the first electric push rod 30 is shortened, and the inclined surface block 29 is moved upward inside the first control groove 28 through the first electric push rod 30. At this time, the bottom end of the inclined surface block 29 no longer contacts one end of the locking rod 24. Under the action of the spring 27's own rebound force, the slide plate 26 moves inside the reset groove 25. At the same time, the slide plate 26 drives the locking rod 24 to move toward the middle of the locking block 21, so that one end of the locking rod 24 is no longer inside the locking groove 22. At this time, the unlocking work is completed; Step 2: Move, control the motor 12 to work, the output end of the motor 12 drives the worm wheel 11 and the main shaft 10 to rotate through the worm 13, the main shaft 10 drives the wire drum 9 to rotate, and the wire rope 16 is retracted and released through the wire drum 9. The climbing block 4, the footboard 5, the handrail 6 and the user can be pulled up and down through the wire rope 16; Step 3: Lock again. When the user moves to a suitable position, the worm wheel 11 and the worm 13 can initially complete self-locking. Then the user controls the first electric push rod 30 to work, so that the inclined surface of the bottom end of the inclined surface block 29 contacts the inclined surface of the locking rod 24 through the first electric push rod 30, so that one end of the locking rod 24 is inserted into the interior of the locking groove 22, thereby completing the locking function. When the user falls while using the device, the speed detection wheel 18 can detect that the climbing block 4 and the user are falling quickly again. At this time, the output end of the second electric push rod 40 pushes the total push rod 38 to move forward, and the total push rod 38 makes the push plate 32 and the lock plate 33 slide to the ends away from each other through the connecting rod 39, until one side of the lock plate 33 is tightly fitted with the inner wall of the safety groove 19, thereby further moving the lock plate 33 outward under the action of friction, and the inclined surface of the lock plate 33 and the inclined surface of the inclined surface groove 36 conflict with each other, thereby further moving the lock plate 33 outward, so that the lock plate 33 is in the gap between the inclined surface groove 36 and the safety groove 19, and the friction between the surface of the safety block 20 and the inner wall of the safety groove 19 is increased by the lock plate 33, thereby locking the safety block 20 and the climbing block 4, so that the safety block 20, the climbing block 4, the foot plate 5 and the user do not fall; Step 5: Reset. When the user is safe, the control motor 12 works, thereby pulling the climbing block 4 upward through the wire rope 16, and the climbing block 4 drives the safety block 20 to move upward inside the safety groove 19. The upward moving safety block 20 can make the lock plate 33 move downward. When the bottom end of the lock plate 33 contacts the inner wall of the bottom end of the second receiving groove 31, the lock plate 33 no longer moves. The total push rod 38 is reset through the second electric push rod 40, and the push plate 32 and the lock plate 33 can be reset through the connecting rod 39, so as to facilitate the next safety protection work.

[0018] Working principle: When the user uses the device to climb, the user stands on the footboard 5 and holds the top of the handrail 6 with both hands. At this time, the user first controls the first electric push rod 30 to work, and the output end of the first electric push rod 30 shortens. The output end of the first electric push rod 30 drives the inclined surface block 29 to move, and the inclined surface block 29 is moved upward inside the first control groove 28 through the first electric push rod 30. At this time, the bottom end of the inclined surface block 29 no longer conflicts with one end of the locking rod 24. At this time, under the action of the spring 27's own rebound force, the slide plate 26 moves inside the reset groove 25, and at the same time, the slide plate 26 drives the locking rod 24 to move toward the middle of the locking block 21, so that one end of the locking rod 24 is no longer inside the locking groove 22. At this time, the unlocking work is completed, and then the motor 1 can be controlled 2 works, the output end of the motor 12 drives the worm 13 to rotate, the worm 13 drives the worm wheel 11 to rotate, the worm wheel 11 drives the main shaft 10 to rotate, the main shaft 10 drives the wire drum 9 to rotate, the wire drum 9 is used to retract and release the wire rope 16, the climbing block 4, the footboard 5, the handrail 6 and the user can be pulled up and down by the wire rope 16, and at the same time, the climbing block 4 drives the speed detection wheel 18 to rotate inside the guide groove 17, and the climbing block 4 drives the safety block 20 to slide inside the safety groove 19. When the user moves to a suitable position, the self-locking can be preliminarily completed by the own characteristics of the worm wheel 11 and the worm 13, and then the user controls the first electric push rod 30 to work, and the inclined surface block 29 is moved downward by the first electric push rod 30, and the inclined surface block 29 at the bottom end is The surface of the locking rod 24 contacts with the inclined surface of the locking rod 24, so that the locking rods 24 move away from each other, and at the same time, the locking rod 24 drives the slide plate 26 to slide inside the reset groove 25, and the slide plate 26 compresses the spring 27. When one end of the locking rod 24 is inserted into the interior of the lock groove 22, the locking function is completed, further improving the safety of the user. When the user falls while using the device, the speed detection wheel 18 can detect that the climbing block 4 and the user fall quickly again. At this time, the output end of the second electric push rod 40 extends, and the output end of the second electric push rod 40 pushes the total push rod 38 to move forward. The total push rod 38 makes the push plate 32 slide inside the second receiving groove 31 through the connecting rod 39. At this time, the push plate 32 slides to the end away from each other, and the push plate 32 passes through the slider The locking plate 33 is moved outwardly by the locking plate 33, and the locking plate 33 is moved upwardly by the locking plate 33, and the sliding block 35 is driven to slide in the sliding groove 34. At this time, the inclined surface of the locking plate 33 and the inclined surface of the inclined surface abutting groove 36 abut each other, thereby further moving the locking plate 33 outwardly, so that the locking plate 33 is in the gap between the inclined surface abutting groove 36 and the safety groove 19, thereby reducing the gap between the safety groove 19 and the safety block 20 through the locking plate 33, and increasing the friction between the surface of the safety block 20 and the inner wall of the safety groove 19 through the locking plate 33, thereby locking the safety block 20 and the climbing block 4, so that the safety block 20 does not slide downward, thereby preventing the climbing block 4, the foot plate 5 and the user from falling.In this way, the safety of the user is ensured. When the user is safe, the control motor 12 works, thereby pulling the climbing block 4 upward through the steel wire rope 16, and the climbing block 4 drives the safety block 20 to move upward inside the safety groove 19. The upward safety block 20 can make the lock plate 33 move downward. When the bottom end of the lock plate 33 conflicts with the inner wall of the bottom end of the second receiving groove 31, the lock plate 33 no longer moves. The total push rod 38 is reset through the second electric push rod 40, and the push plate 32 and the lock plate 33 are reset through the connecting rod 39, so as to facilitate the next safety protection work. After moving, the device can automatically perform the initial locking work, and at the same time, it can also complete the secondary locking work after moving. The two lockings can greatly improve the safety of the user. When the device is in use and can only fall accidentally, the device can automatically and effectively lock the device in time to prevent the device from falling, further improve the safety of the device, and greatly improve the safety of the user.

[0019] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A wind turbine tower climbing device safety control system, characterized in that: The wind turbine tower body (1) comprises a wind turbine tower body (1), a safety mechanism and an anti-fall mechanism, wherein a ladder (2) is fixedly connected to the inner wall of the wind turbine tower body (1), a platform (3) is fixedly connected to the middle and lower part of the wind turbine tower body (1), and the inner wall of the platform (3) is fixedly connected to the ladder (2), a climbing block (4) is slidably connected to the middle part of the ladder (2), a footboard (5) is fixedly connected to the bottom end of one side of the climbing block (4), a handrail (6) is fixedly connected to the top of the climbing block (4), and the middle part of the handrail (6) is slidably connected to the middle part of the ladder (2), a lifting platform (7) is fixedly connected to the top of the ladder (2), and both ends of the lifting platform (7) are fixedly connected to the inner wall of the wind turbine tower body (1), a rotating bin (8) is provided in the middle part of the lifting platform (7), and the bottom end of the rotating bin (8) passes through the lifting platform (7), and the interior of the rotating bin (8) is connected by a bearing. A wire drum (9) is provided, one end of the wire drum (9) is fixedly connected to a main shaft (10), and one end of the main shaft (10) is connected to the inner wall of a rotating bin (8) through a bearing, a worm gear (11) is fixedly connected to the middle of the main shaft (10), a motor (12) is provided at one end of the lifting platform (7), a worm gear (13) is fixedly connected to the output end of the motor (12), and the worm gear (13) is meshed with the worm gear (11), a steel wire rope (16) is symmetrically wound around the surface of the wire drum (9), and the bottom ends of the steel wire ropes (16) are fixedly connected to the top of a climbing block (4), a guide groove (17) is symmetrically provided in the middle of the ladder (2), and safety grooves (19) are provided on the inner walls of both sides of the ladder (2), and safety blocks (20) are slidably connected to the inside of the safety grooves (19), and one end of the safety blocks (20) is fixedly connected to the climbing block (4).

2. A wind turbine tower climbing device safety control system according to claim 1, characterized in that: The inner wall of the rotating bin (8) is symmetrically provided with wheel grooves (14), and the interior of the wheel grooves (14) is connected to three groups of rollers (15) via bearings, and the surface of the steel wire rope (16) is in contact with the surface of the rollers (15).

3. A wind turbine tower climbing device safety control system according to claim 1, characterized in that: The control end of the motor (12) is electrically connected to an external power supply via an external switch. The size of the safety groove (19) is larger than the size of the safety block (20). The gap between the safety groove (19) and the safety block (20) is one centimeter.

4. A wind turbine tower climbing device safety control system according to claim 1, characterized in that: The safety mechanism comprises a locking block (21), a locking groove (22), a first receiving groove (23), a locking rod (24), a reset groove (25), a slide plate (26), a spring (27), a first control groove (28), an inclined surface block (29) and a first electric push rod (30); two sets of locking blocks (21) are fixedly connected to the bottom end of the climbing block (4); the inner walls of one end of the guide groove (17) and the safety groove (19) are both provided with locking grooves (22); the middle of the locking block (21) is provided with a first receiving groove (23); both ends of the first receiving groove (23) are slidably connected to the locking rod (24); the inner walls of the first receiving groove (23) are symmetrically provided with reset grooves (25); the interior of the reset groove (25) is slidably connected to the slide plate (26). , and the middle part of the slide plate (26) is respectively fixedly connected to the locking rod (24), both ends of the slide plate (26) are fixedly connected to springs (27), and one end of the spring (27) is respectively fixedly connected to the inner wall of the reset groove (25), the bottom end of the climbing block (4) is provided with a first control groove (28), and the bottom end of the first control groove (28) passes through the locking block (21), the inside of the first control groove (28) is slidably connected to an inclined surface block (29), and the middle part of the inclined surface block (29) is respectively fitted with one end of the locking rod (24), the inner wall of the top end of the first control groove (28) is provided with a first electric push rod (30), and the output end of the first electric push rod (30) is respectively fixedly connected to the top end of the inclined surface block (29).

5. A wind turbine tower climbing device safety control system according to claim 4, characterized in that: One end of the locking rod (24) is respectively located inside the locking groove (22), and the length of the locking rod (24) inside the locking groove (22) is the same. The control end of the first electric push rod (30) is electrically connected to an external power supply through an external switch. The bottom ends of the inclined surface blocks (29) are symmetrical inclined surfaces, and the ends of the locking rods (24) that are close to each other are inclined surfaces that are compatible with the bottom ends of the inclined surface blocks (29).

6. A wind turbine tower climbing device safety control system according to claim 1, characterized in that: The anti-fall mechanism comprises a speed detection wheel (18), a second receiving groove (31), a push plate (32), a locking plate (33), a slide groove (34), a slider (35), an inclined surface abutment groove (36), a second control groove (37), a total push rod (38), a connecting rod (39) and a second electric push rod (40). Three groups of speed detection wheels (18) are symmetrically arranged in the middle of the climbing block (4), and the surface of the speed detection wheel (18) is in contact with the inner wall of the guide groove (17). The middle and lower parts of the safety block (20) are symmetrically provided with second receiving grooves (31), both ends of the second receiving grooves (31) are slidably connected with push plates (32), the ends of the push plates (32) away from each other are provided with locking plates (33), and the locking plates (33) are slidably connected with the second receiving grooves (31), the sides of the push plates (32) away from each other are provided with sliding grooves (34), the middle and lower parts of the sliding grooves (34) are slidably connected with sliders (35), and the sliders (35) are slidably connected with the sliders (35). The ends of the two ends of the safety block (20) are fixedly connected to the middle and lower parts of the locking plate (33), the middle parts of the two ends of the safety block (20) are symmetrically provided with inclined surface abutment grooves (36), and the bottom ends of the inclined surface abutment grooves (36) are respectively connected to the second receiving grooves (31), the middle and lower parts of the safety block (20) are provided with second control grooves (37), and one end of the second control grooves (37) is respectively located inside the climbing block (4), and one end of the second control grooves (37) is respectively connected to the second receiving grooves ( 31), the interior of the second control groove (37) is slidably connected with a total push rod (38), one end of the total push rod (38) is evenly connected to a connecting rod (39) via a rotating shaft, and one end of the connecting rod (39) is respectively connected to the push plate (32) via a rotating shaft, and the inner wall of one end of the second control groove (37) is evenly provided with three groups of second electric push rods (40), and the output ends of the second electric push rods (40) are respectively fixedly connected to the total push rod (38).

7. A wind turbine tower climbing device safety control system according to claim 6, characterized in that: The middle and upper part of the lock plate (33) close to the push plate (32) is an inclined surface, and the inner wall of the inclined surface abutting groove (36) is an inclined surface matched with the lock plate (33).

8. A wind turbine tower climbing device safety control system according to claim 6, characterized in that: The control ends of the second electric push rods (40) are electrically connected to an external power source via a speed detection wheel (18).

9. An operating method for a wind turbine tower climbing device safety control system according to any one of claims 1 to 8, characterized in that: Step 1: Unlocking. The user stands on the footboard (5) and holds the top of the handrail (6) with both hands. At this time, the user first controls the first electric push rod (30) to work. The output end of the first electric push rod (30) is shortened, and the inclined surface block (29) is moved upward inside the first control groove (28) through the first electric push rod (30). At this time, the bottom end of the inclined surface block (29) no longer contacts one end of the locking rod (24). Under the action of the spring (27)'s own rebound force, the slide plate (26) moves inside the reset groove (25). At the same time, the slide plate (26) drives the locking rod (24) to move toward the middle of the locking block (21), so that one end of the locking rod (24) is no longer inside the locking groove (22). At this time, the unlocking work is completed; Step 2: Move, control the motor (12) to work, the output end of the motor (12) drives the worm wheel (11) and the main shaft (10) to rotate through the worm (13), the main shaft (10) drives the wire drum (9) to rotate, and the wire rope (16) is retracted and released through the wire drum (9), and the climbing block (4), the footboard (5), the handrail (6) and the user can be pulled up and down through the wire rope (16); Step 3: Locking again. When the user moves to a suitable position, the worm wheel (11) and the worm (13) can initially complete self-locking. Then the user controls the first electric push rod (30) to work, so that the inclined surface of the bottom end of the inclined surface block (29) contacts the inclined surface of the locking rod (24) through the first electric push rod (30), so that one end of the locking rod (24) is inserted into the interior of the locking groove (22), thereby completing the locking function. Step 4: Automatic locking upon falling. When a user falls while using the device, the speed detection wheel (18) can detect that the climbing block (4) and the user are falling rapidly. At this time, the output end of the second electric push rod (40) pushes the main push rod (38) forward, and the main push rod (38) causes the push plate (32) and the lock plate (33) to slide toward ends away from each other through the connecting rod (39) until one side of the lock plate (33) is tightly fitted with the inner wall of the safety groove (19). At this time, the friction force causes the push plate (32) and the lock plate (33) to slide toward ends away from each other. The lock plate (33) moves upward, and the inclined surface of the lock plate (33) and the inclined surface of the inclined surface abutting groove (36) abut against each other, thereby further causing the lock plate (33) to move outward, so that the lock plate (33) is located in the gap between the inclined surface abutting groove (36) and the safety groove (19), and the friction between the surface of the safety block (20) and the inner wall of the safety groove (19) is increased by the lock plate (33), thereby locking the safety block (20) and the climbing block (4), so that the safety block (20), the climbing block (4), the foot plate (5) and the user do not fall; Step 5: Reset. When the user is safe, the control motor (12) works, thereby pulling the climbing block (4) upward through the steel wire rope (16), and the climbing block (4) drives the safety block (20) to move upward inside the safety groove (19). The upward moving safety block (20) can cause the locking plate (33) to move downward. When the bottom end of the locking plate (33) contacts the inner wall of the bottom end of the second receiving groove (31), the locking plate (33) no longer moves. The main push rod (38) is reset through the second electric push rod (40), and the push plate (32) and the locking plate (33) are reset through the connecting rod (39), thereby facilitating the next safety protection work.

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